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Motley Fool Hidden Gems Investing

Interview with Dan Ariely: Investing in the Irrational

Motley Fool Hidden Gems Investing

The Motley Fool

Business, Investing

4.3 • 3.1K Ratings

🗓️ 14 September 2025

⏱️ 19 minutes

🧾️ Download transcript

Summary

Dan Ariely, a Professor of Behavioral Economics at Duke University, is the bestselling author of Misbelief, Dollars and Sense, and Predictably Irrational. Motley Fool contributor Rich Lumelleau talks with Ariely about the rational and irrational: Inspiration for studying human behavior Swiss Army Knife problem Emotions and investing Extrinsic and intrinsic motivation Host: Rich LumulleauProducer: Mac GreerEngineer: Adam LandfairDisclosure: Advertisements are sponsored content and provided for informational purposes only. The Motley Fool and its affiliates (collectively, “TMF”) do not endorse, recommend, or verify the accuracy or completeness of the statements made within advertisements. TMF is not involved in the offer, sale, or solicitation of any securities advertised herein and makes no representations regarding the suitability, or risks associated with any investment opportunity presented. Investors should conduct their own due diligence and consult with legal, tax, and financial advisors before making any investment decisions. TMF assumes no responsibility for any losses or damages arising from this advertisement. Learn more about your ad choices. Visit ⁠megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

Transcript

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0:00.0

So when we collect data on what it is that companies create and their employees feel about the company that make a dent in Alfa in stock market return, it ends up having nothing to do with extrinsic motivation.

0:21.7

That was Dan Ariely, Professor of Behavioral Economics at Duke University.

0:26.9

I'm Motley Full producer Matt Greer.

0:29.1

Now, we've had the opportunity to interview Dan Ariely a number of times over the years.

0:33.8

He's really great at helping us understand our behavior as investors.

0:38.7

Motleyful contributor Rich Lumello recently talked with Haryrelli about investing, including the rational and the irrational.

0:47.0

Welcome to Motley Fool Conversations. I'm your host, Motley Fool contributor Rich Lamello.

0:52.2

Today on the show, I'm thrilled to welcome Dan Ariely,

0:55.3

a renowned behavioral economist, professor, author, and entrepreneur whose work has

1:01.1

reshaped how we think about decision-making, money, motivation, and human nature. Dan's the author

1:06.5

of 10 books, including three New York Times bestsellers, like predictably irrational,

1:11.2

the honest truth about dishonesty, Dollars and Sense. He's delivered some of the most

1:15.7

watched TED Talks of all times. He penned a popular Wall Street Journal column for over a decade,

1:22.3

and he co-founded multiple companies that apply behavioral science in health and finance and technology. Today, we'll dive into

1:30.8

what really kind of drives our financial behavior, why we often get investing wrong,

1:35.0

and how we can make smarter choices in an irrational world. Dan, welcome to the podcast.

1:40.9

Lovely to be here. Thanks for the lovely introduction. I've been on podcast from the

1:46.4

Motley Fool a few times and every time it was fun. So I'm looking forward to this.

1:50.4

Excellent. Well, clearly, as you know, kind of laid out in the introduction, there's a lot of

1:55.6

ground to cover. And obviously, as you well know, we're, you know, an investing website.

2:00.6

So we'll probably, you know, kind of gear things a little bit that way.

2:04.0

But I'd love to, I'd love to, I mean, it's fascinating your studies.

...

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